I strongly disagree. You don't want your script, especially a production application, to suddenly start using a different perl (which might not be compatible or might not have the correct modules installed).

I would create a perlbrew alias for each project and use that. This would allow testing with different versions, etc. by modifying the alias.

In reply to Re^3: How to run a legacy perl version smoothly from perlbrew & Carton by ikegami
in thread How to run a legacy perl version smoothly from perlbrew & Carton by chrestomanci

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